Biogeographical patterns in soil bacterial communities across the Arctic region.

ABSTRACT: The considerable microbial diversity of soils and key role in biogeochemical cycling have led to growing interest in their global distribution and the impact that environmental change might have at the regional level. In the broadest study of Arctic soil bacterial communities to date, we used high-throughput DNA sequencing to investigate the bacterial diversity from 200 independent Arctic soil samples from 43 sites. We quantified the impact of spatial and environmental factors on bacterial community structure using variation partitioning analysis, illustrating a nonrandom distribution across the region. pH was confirmed as the key environmental driver structuring Arctic soil bacterial communities, while total organic carbon (TOC), moisture and conductivity were shown to have little effect.

SUBMITTER: Malard LA 

PROVIDER: S-EPMC6736398 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature